Introduced in 1936, the original BESSEY malleable cast iron bar clamp was the world's first bar clamp. Clamps with traditional wood handles are still available and quite popular however, many models are now also available with composite plastic handles as well as with tommy bar (sliding pin) handles. Many of these clamps have also been fitted with replaceable pressure pads that are easily replaced, and allow for replacement of damaged spindles.

BESSEY anti-slip system the set screw is molded into the sliding arm and interlocks with the serrated rail to prevent sliding